Rephrase this phrase please...?

Question

~I could have been~

to sound as if it possibly was, yet still a mystery

Answer 1

Perhaps I was......

or

Had I been a.....

or

My identity still a blur...

Answer 2

I mite have been but ?

Answer 3

There was a chance that it could have been, but that chance is no longer any more common than it was at the time.

Essentially, you could have been something and can still be it, but it hasn't happened yet.

Answer 4

It once was possible that I...

Perhaps once I could have...

Answer 5

the sound could have been but it is still unknown.

Answer 6

Possibly I was

Perhaps I was

Answer 7

could well be, as everything is possiable.